“I love the scene between Ross and Danai, where Ross sees the walkers on the other side of the border and he gallops his horse towards them and kills them because he wants to make sure that they’re not being watched.
“And Michonne’s response is like, ‘Are you crazy? What are you doing? We can’t go up against them. We need to be smart about this.’
“But he can’t he’s just had too much emotion,” Greg explained.
The showrunner added: “So you really get the sense that our people are begrudgingly going to follow the borders and the rules.”